I did about a week's worth of testing with my Epic M / Pix 240 combo before taking it into the field with a client... everything worked great in the testing... I shot from a tripod, while walking, moving in a car, all sorts of stuff... I didn't even notice a need for an offset with the audio!
The first job went without a hitch. Everything worked perfectly! On our second effort in the field with the Pix 240, we had some issues... our client reported to us that on two clips (out of several hours of footage) there "green lines" in the video and the sync got off by as much as 6 seconds! I am boggled... (We talked an HD client into using the Epic instead of another camera as it could provide the "look" of film better than the other camera. They couldn't handle the 5K footage, so we suggested using the Pix 240 in their choice of Avid DNxHD 145! )
Here's a link to the video: https://vimeo.com/37137991
I've contacted both Sound Devices and Red and both seem to think the problem lies with the other... I don't care about blame, I just want to rectify the situation and NOT have it happen again.
I'd appreciate any help out there, as I'm a bit stumped right now.
The work flow was as follows:
Thanks for the assistance.
- Audio feed from a Sound Devices 522/744 INTO the Pix 240 via XLR cable
- Audio OUT of the Pix 240 INTO the Red Epic with custom built Remote Audio 5 pin XLR to dual right angle mono mini jacks
- Video feed OUT of Epic INTO Pix 240 (5K 2:1 ~ timebase of 29.97p to 1080, 30p (29.97) yes, we knew about the black bars...)
- All menus/selections in Pix set to Red: Timecode, clip name, record trigger, etc.